gistfile1

javax.servlet.ServletException: DESCRIPTOR
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:448)
        at org.kohsuke.stapler.MetaClass.dispatch(MetaClass.java:318)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:436)
        at org.kohsuke.stapler.MetaClass.doDispatch(MetaClass.java:186)
        at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:436)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:354)
        at org.kohsuke.stapler.Stapler.service(Stapler.java:114)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
        at winstone.ServletConfiguration.execute(ServletConfiguration.java:249)
        at winstone.RequestDispatcher.forward(RequestDispatcher.java:335)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:378)
        at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:91)
        at org.jvnet.hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:38)
        at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:94)
        at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:83)
        at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:84)
        at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
        at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:87)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
        at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:155)
        at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
        at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
        at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
        at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
        at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
        at java.lang.Thread.run(Thread.java:619)